Lakes Van, Urmia and Sevan, in Turkey, Iran and Armenia

Visible in this image are three lakes arranged in a triangle: Lake Van, in Turkey (left), the reddish Lake Urmia, in Iran (right), and Lake Sevan, in Armenia (above). Each is the largest lake in its respective country.

While Lakes Van and Sevan appear dark blue, Lake Urmia is rusty red in color. It is saline and ringed by salt flats that are white in color where its waters have (partially) evaporated.